Volume Effects in Pairs Trading Performance

Summary

The episode examines a recent study that integrates trading volume into pairs‑trading strategies for S&P 500 stocks, using cointegration over data from 2005‑2024. The key finding is that high‑volume pairs consistently outperform low‑volume pairs across return, risk, and convergence metrics, and this advantage persists even as the strategy’s performance improves in the later 2015‑2024 period. The research also shows that results are robust to different parameter settings and weighting schemes, with equal weighting offering a simple yet effective approach. Overall, the discussion highlights volume as a dominant driver that revives interest in pairs trading despite efficient‑market expectations.